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xtensa_perfmon_config struct
Performance monitor configuration structure Structure to configure performance counter to measure dedicated function
Syntax
typedef struct xtensa_perfmon_config
{
int repeat_count;
float max_deviation;
void *call_params;
void (*call_function)(void *params);
void (*callback)(void *params, uint32_t select, uint32_t mask, uint32_t value);
void *callback_params;
int tracelevel;
uint32_t counters_size;
const uint32_t *select_mask;
} xtensa_perfmon_config_t;
Fields
Field
Declared as
Description
int
how much times function will be called before the calback will be repeated.
float
Difference between min and max counter number 0..1, 0 - no difference, 1 - not used.
void *
This pointer will be passed to the call_function as a parameter.
void (*)(void *params)
pointer to the function that have to be called.
void (*)(void *params, uint32_t select, uint32_t mask, uint32_t value)
pointer to the function that will be called with result parameters.
int
trace level for all counters. In case of negative value, the filter will be ignored. If it's >=0, then the perfmon will count only when interrupt level > tracelevel. It's useful to monitor interrupts.